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ICC在SPSS的用法

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使用SPSS算ICC 研究者使用哪一ANOVA模式 接下要consistency或absolute agreement 不同的很可能生不同的果而且差不小

有三ANOVA模式:

(1)One-way random:只考象效果

(2)Two-way random:同考分者象效果

(3)Two-way mixed:(2)差在分者效果限於眼下研究所之分者

那到底要consistency或absolute agreement?

(1)Consistency: Rater variability有放分母

(2)Absolute agreement: Rater variability有放分母

ICC理公式如[1]: source: http://www.john-uebersax.com/stat/icc.htm

                                     s 2(b)    
ICC    =   ------------   [1] 

  

s 2(b) + s 2 (w)

 

Note. (w) within subjects, (b) between subjects.

 

再看一下分: source: https://en.wikipedia.org/wiki/Intraclass_correlation

Shrout and Fleiss six modelsDescription in SPSS
ICC(1,1)One-way random single measures
ICC(1,n)One-way random average measures
ICC(2,1)Two-way random single measures (Consistency/Absolute agreement)
ICC(2,n)Two-way random average measures (Consistency/Absolute agreement)
ICC(3,1)Two-way mixed single measures (Consistency/Absolute agreement)
ICC(3,n)Two-way mixed average measures (Consistency/Absolute agreement)

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